本研究以有限元素ANSYS分析現有水平支臂的力學行為，再搭配田口實驗法進行支臂最佳化設計，其中最佳化目標為支臂垂直方向的位移值最小與支臂的重量最輕為目標。ANSYS模擬的位移結果將與實際樣品比對其差異值，接著，改變支臂的負載重量並再次模擬結果比對，以驗證模擬結果的可靠性。
其次，本文以田口實驗法進行新設計支臂幾何尺寸的最佳化組合實驗，實驗為望小型品質特性，品質特性為支臂垂直方向的位移量，控制因子有:支臂高度、支臂寬度、支臂底部厚度與支臂側臂厚度。在找出控制因子的有效水準範圍後，套用至L9直交表進行實驗，並計算每組實驗支臂垂直方向位移量，再計算每組實驗的平均值、標準差與S/N比，並繪製品質特性反應圖，以找出最佳化的尺寸組合。同時，本文將製作支臂樣品搭配實際負載進行垂直方向位移的量測，並與模擬結果進行比對。接著，改變負載重量以驗證模擬趨勢是否正確，即完成支臂幾何尺寸的最佳化設計。最後，進行實際的傳送，以確認新設計支臂模組符合新案傳送的使用需求。

This study is a research on the optimal combination of geometric dimensions for the newly designed Robot arm. The finite element analysis software, ANSYS, was used to analyze the stress strains and displacements, and then the Taguchi Methods experimental was used to conduct the experiments on the optimal combination. The geometric dimensions of the arm were selected as the controlling factor, the vertical deformation as the quality characteristic, and the functional characteristic as the lookout minima (SML), and the experiments were conducted using the L9 orthogonal table, and the S/N ratios were calculated to find out the optimal combination of dimensions and the samples were produced for the verification of the results.

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